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28 条记录 (耗时 0.014 秒)

    HYDRAULIKSYSTEM
    21.
    发明公开
    HYDRAULIKSYSTEM 有权

    公开(公告)号：EP2855945A1

    公开(公告)日：2015-04-08

    申请号：EP13711642.2

    申请日：2013-03-20

    申请人： Putzmeister Engineering GmbH

    发明人： VEIT, Jan-Martin ,  MÜNZENMAIER, Werner

    IPC分类号： F15B11/17

    CPC分类号： F15B11/17 ,  E02F9/2292 ,  F04B9/1178 ,  F04B15/02 ,  F04B49/06 ,  F15B7/006 ,  F15B13/027 ,  F15B13/028 ,  F15B13/06 ,  F15B2211/20546 ,  F15B2211/20561 ,  F15B2211/20576 ,  F15B2211/26 ,  F15B2211/27 ,  F15B2211/3059 ,  F15B2211/31594 ,  F15B2211/4159 ,  F15B2211/428 ,  F15B2211/613 ,  F15B2211/7053 ,  F15B2211/7114 ,  F15B2211/7121 ,  F15B2211/781

    摘要： The invention relates to a hydraulic system, preferably for actuating and engaging a mobile slurry pump. The hydraulic system comprises a primary circuit, actuating a first hydraulic consumer, which circuit has a hydraulic drive assembly comprising at least one motor-driven hydraulic pump (1, 2, 44). The hydraulic system further comprises a secondary circuit 11, actuating a second hydraulic consumer, which circuit has a second hydraulic drive assembly comprising at least one additional motor-driven hydraulic pump (22). In a first operating state, hydraulic oil from a common tank (60) can be admitted to the hydraulic consumers (7, 8; 24) arranged in the primary circuit and in the secondary circuit 11 via the hydraulic drive assemblies thereof, independently of one another. In a second operating state, a portion of the hydraulic oil is supplied from the primary circuit 1 to the secondary circuit 11 to actuate the second consumer (24).

    摘要翻译： 本发明涉及一种液压系统，优选用于致动和接合移动式泥浆泵。 液压系统包括启动第一液压消耗器的主回路，该回路具有包括至少一个马达驱动液压泵（1,2,44）的液压驱动组件。 液压系统还包括启动第二液压消耗器的次级回路11，该回路具有包括至少一个附加的电动液压泵（22）的第二液压驱动组件。 在第一运行状态中，来自公共油箱（60）的液压油可以通过其液压驱动组件进入布置在主回路和次回路11中的液压消耗器（7,8; 24），独立于一个回路 另一个。 在第二操作状态下，一部分液压油从初级回路1供应到次级回路11以致动第二用户（24）。

    HYDRAULIC DRIVE APPARATUS
    23.
    发明授权
    HYDRAULIC DRIVE APPARATUS 有权
    液压传动装置

    公开(公告)号：EP1662151B1

    公开(公告)日：2011-11-30

    申请号：EP04771548.7

    申请日：2004-08-05

    申请人： Hitachi Construction Machinery Co., Ltd.

    发明人： KAJITA, Yusuke, Hitachi Construction Machinery Co ,  ISHIKAWA, Koji ,  KARASAWA, Hideo

    IPC分类号： F15B11/00 ,  E02F9/22

    CPC分类号： F15B11/024 ,  E02F9/2225 ,  E02F9/2296 ,  F15B11/16 ,  F15B21/14 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/30525 ,  F15B2211/3058 ,  F15B2211/3116 ,  F15B2211/31576 ,  F15B2211/329 ,  F15B2211/40507 ,  F15B2211/40515 ,  F15B2211/41545 ,  F15B2211/428 ,  F15B2211/6355 ,  F15B2211/7114 ,  F15B2211/88

    摘要： A hydraulic drive apparatus, comprising a boom directional control valve (23) installed on a hydraulic shovel and controlling a boom cylinder (6) driven by pressure oil delivered from a main hydraulic pump (21), an arm directional control valve (24) controlling an arm cylinder (7), a boom operating device (25) controllably switching the boom directional control valve (23), and an arm operating device (26) controllably switching the arm directional control valve (24). The apparatus also comprises a communication control means allowing the rod side chamber (6b) of the boom cylinder (6) to communicate with the bottom side chamber (7a) of the arm cylinder (7) when the operation amount of the arm operating device (26) exceeds a specified amount (S) so that, in a combined operation in which the pressure oil is supplied to the bottom side chambers of a first hydraulic cylinder and a second hydraulic cylinder, the pressure oil in the rod side chamber of the first hydraulic cylinder which was disposed off in a tank can be effectively utilized irrespective of whether the bottom pressure of the second hydraulic cylinder is high or low.

    摘要翻译： 1。一种液压驱动装置，其特征在于，具备：安装在液压挖掘机上，控制由从主液压泵（21）输出的压力油驱动的动臂油缸（6）的动臂用方向控制阀（23） 斗杆缸7，可控制地切换动臂用方向控制阀23的动臂操作装置25以及可控地切换斗杆用方向控制阀24的斗杆操作装置26。 该装置还包括一个连通控制装置，当臂操纵装置（6）的操作量达到预定值时，动臂缸（6）的杆侧室（6b）与臂缸（7）的底侧室（7a） 在第一液压缸和第二液压缸的底侧室中供给压力油的组合操作中，第一液压缸和第二液压缸的杆侧室中的压力油在第一液压缸和第二液压缸的底侧室中的压力油超过规定量（S） 不管第二液压缸的底部压力是高还是低，都可以有效地利用设置在箱中的液压缸。

    Operating device
    24.
    发明公开
    Operating device 有权
    操作元件

    公开(公告)号：EP2034188A3

    公开(公告)日：2011-05-25

    申请号：EP08009580.5

    申请日：2008-05-26

    申请人： Fumoto Giken Co., Ltd.

    发明人： Yamamoto, Naoyuki ,  Yamamoto, Ryouhei

    IPC分类号： F15B11/042 ,  F15B11/044 ,  F15B15/20

    CPC分类号： F15B11/042 ,  F15B11/044 ,  F15B15/204 ,  F15B2211/212 ,  F15B2211/40515 ,  F15B2211/455 ,  F15B2211/46 ,  F15B2211/7052 ,  F15B2211/7114

    摘要： The objective of the present invention is to provide a device that accurately communicates a subtle variation of an operation side to an action side. Specifically, in the present invention, an operating device (1) is provided to perform a lock release operation of an extension device (5A,5B). The operating device (1) feeds oil to a valve chamber by pressing a piston. When the flow rate of the fed oil is excessive, the valve is pressed to an opening resisting a biasing force of a compressed spring, thereby a rapid increase in the oil supplied to the action section is suppressed. Further, the supplied oil is suppressed to a very small amount by the throttle section, thereby an increase in the operation amount on the action section side is suppressed while maintaining the supply of the oil.

    Operating device
    26.
    发明公开
    Operating device 有权
    Bedienungselement

    公开(公告)号：EP2034188A2

    公开(公告)日：2009-03-11

    申请号：EP08009580.5

    申请日：2008-05-26

    申请人： Fumoto Giken Co., Ltd.

    发明人： Yamamoto, Naoyuki ,  Yamamoto, Ryouhei

    IPC分类号： F15B11/042 ,  F15B11/044 ,  F15B15/20

    CPC分类号： F15B11/042 ,  F15B11/044 ,  F15B15/204 ,  F15B2211/212 ,  F15B2211/40515 ,  F15B2211/455 ,  F15B2211/46 ,  F15B2211/7052 ,  F15B2211/7114

    摘要： The objective of the present invention is to provide a device that accurately communicates a subtle variation of an operation side to an action side. Specifically, in the present invention, an operating device (1) is provided to perform a lock release operation of an extension device (5A,5B). The operating device (1) feeds oil to a valve chamber by pressing a piston. When the flow rate of the fed oil is excessive, the valve is pressed to an opening resisting a biasing force of a compressed spring, thereby a rapid increase in the oil supplied to the action section is suppressed. Further, the supplied oil is suppressed to a very small amount by the throttle section, thereby an increase in the operation amount on the action section side is suppressed while maintaining the supply of the oil.

    摘要翻译： 本发明的目的是提供一种将操作侧的细微变化精确地传递到动作侧的装置。 具体地说，在本发明中，提供了一种操作装置（1），用于执行扩展装置（5A，5B）的锁定解除操作。 操作装置（1）通过按压活塞将油供给到阀室。 当供给油的流量过大时，将阀按压到抵抗压缩弹簧的偏压力的开口，从而抑制供给到动作部的油的快速增加。 此外，通过节流部将供给的油抑制得很少，从而在保持供油的同时抑制作用部侧的操作量的增加。

    HYDRAULIC DRIVING UNIT
    27.
    发明公开
    HYDRAULIC DRIVING UNIT 有权
    液压天然气

    公开(公告)号：EP1388670A1

    公开(公告)日：2004-02-11

    申请号：EP02771703.2

    申请日：2002-05-13

    申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.

    发明人： KAJITA, Yusuke

    IPC分类号： F15B11/00 ,  F15B11/02 ,  F15B11/16

    CPC分类号： F15B11/024 ,  E02F9/2203 ,  E02F9/2217 ,  E02F9/2225 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2292 ,  F15B11/16 ,  F15B13/0422 ,  F15B21/14 ,  F15B2211/50545 ,  F15B2211/7114 ,  F15B2211/88

    摘要： A hydraulic driving unit is provided with a directional control valve 23 and directional control valve 24 for controlling a boom cylinder 6 and arm cylinder 7, both of which are driven by pressure oil delivered from a main hydraulic pump, respectively, a boom control device 25 for selectively controlling the directional control valve 23 and an arm control device 26 for selectively controlling the directional control valve 24, and is mounted on a hydraulic excavator. To permit effective use of pressure oil in a rod chamber 6a of the boom cylinder 6 when a bottom pressure of the arm cylinder 7 has become high while performing a combined operation such that pressure oil is being supplied to bottom chambers 6a, 7a of the boom cylinder 6 and arm cylinder 7, the hydraulic driving unit is provided with a communication controlling means for bringing the rod chamber 6b of the boom cylinder 6 and the bottom chamber 7a of the arm cylinder 7 into communication with each other when the bottom pressure of the arm cylinder 7 has increased to a high pressure equal to or higher than a predetermined pressure.

    摘要翻译： 液压驱动单元设置有方向控制阀23和用于控制动臂缸6和斗杆缸7的方向控制阀24，两者都分别由从主液压泵输送的压力油驱动，起重臂控制装置25 用于选择性地控制方向控制阀23和用于选择性地控制方向控制阀24的臂控制装置26，并且安装在液压挖掘机上。 为了在臂缸7的底部压力变高时能够有效地利用动臂缸6的杆室6a内的压力油，同时进行组合动作，使得压力油被供给到动臂的下部室6a，7a 气缸6和悬臂气缸7，液压驱动单元设置有连通控制装置，用于当动臂缸6的杆室6b和臂气缸7的底室7a彼此连通时， 臂气缸7已经增加到等于或高于预定压力的高压。